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Makuuchi, Keizo
Porima Daijesuto, 54(2), p.17 - 25, 2002/02
no abstracts in English
Chinju, H.*; Nagasaki, Shinya*; Tanaka, Satoru*; Sakamoto, Yoshiaki; Takebe, Shinichi; Ogawa, Hiromichi
Journal of Nuclear Science and Technology, 38(8), p.645 - 654, 2001/08
Times Cited Count:3 Percentile:27.1(Nuclear Science & Technology)no abstracts in English
Makuuchi, Keizo; Haque, M. H.*; Ikeda, Kenichi*; Yoshii, Fumio; Kume, Tamikazu
Nihon Ratekkusu Arerugi Kenkyukai Kaishi, 4(1), p.7 - 10, 2001/01
no abstracts in English
Soebianto, Y. S.*; Ratnayake, U. M.*; Makuuchi, Keizo; Yoshii, Fumio; Kume, Tamikazu
JAERI-Conf 2000-003, p.49 - 55, 2000/03
no abstracts in English
Makuuchi, Keizo; Upul, R. M.*; Soebianto, Y. S.*; Yoshii, Fumio
Nihon Ratekkusu Arerugi Kenkyukai Kaishi, p.31 - 37, 1999/07
no abstracts in English
Makuuchi, Keizo
Porima Daijesuto, 51(5), p.43 - 65, 1999/05
no abstracts in English
Chinju, H.*; Nagasaki, Shinya*; Tanaka, Satoru*; Tanaka, Tadao; Ogawa, Hiromichi
Materials Research Society Symposium Proceedings, Vol.556, p.743 - 750, 1999/00
no abstracts in English
Makuuchi, Keizo
Porima Daijesuto, 50(11), p.17 - 28, 1998/11
no abstracts in English
*; Yui, Mikazu
PNC TN8410 97-125, 20 Pages, 1997/03
To evaluate migration behavior of radionuclides in geologic media is one of the most significant issues for the performance assessment of geological disposal system for high level radioactive waste. For performance analysis, effects of micro particles such as colloids on the radionuclides migration should be considered; whether colloids enhance tansport of radionuclides in a geologic formation. Based on the theory of Hydrodynamic Chromatography(HDC), the average flow rate of colloids could be faster than that of the bulk water under the condition that the flow profile of bulk water is parabolic. Transport of radionuclides through geologic media could be accelerated when the radionuclides are sorbed on colloids. In order to investigate the transport behavior of colloids in geologic media, we used a column packed with glass beads as simulated porous geologic media and two types of colloid tracers of gold colloid and latex particle as simulated natural colloids. We compared the flow rate of colloids based on the HDC theory with the results of the column experiments. By this comparison, it is suggested that the flow rate of the colloid in porous geologic media is significantly slower than that predicted based on the HDC. The differences between them was explained by colloid retardation processes due to its sorption on the glass beads, that it is not strictly described in the HDC theory.
Makuuchi, Keizo
Int. Rubber Conf. '97 (IRC'97), p.107 - 116, 1997/00
no abstracts in English
Makuuchi, Keizo; Yoshii, Fumio; F.Akhtar*; S.Varghese*; *
Proc. of 6th Int. Conf. on Radiation Curing (RadTech Asia'97), p.836 - 839, 1997/00
no abstracts in English
Makuuchi, Keizo; Yoshii, Fumio; *; *; F.Akhtar*
Nihon Gomu Kyokai-Shi, 69(7), p.500 - 506, 1996/00
no abstracts in English
Haque, M. E.*; Yoshii, Fumio; Makuuchi, Keizo
Macromolecular Reports, A32(Suppl.3), p.249 - 254, 1995/00
no abstracts in English
Makuuchi, Keizo; Yoshii, Fumio; ; Kume, Tamikazu; *
Nihon Gomu Kyokai-Shi, 68(4), p.263 - 268, 1995/00
no abstracts in English
C.Wang*; Yoshii, Fumio; ; Makuuchi, Keizo
Nihon Gomu Kyokai-Shi, 68(11), p.788 - 793, 1995/00
no abstracts in English
Makuuchi, Keizo; Yoshii, Fumio; J.Gunewardena*
Radiation Physics and Chemistry, 46(4-6), p.979 - 982, 1995/00
Times Cited Count:17 Percentile:82.24(Chemistry, Physical)no abstracts in English
Makuuchi, Keizo
Ecomaterials (Trans. of Materials Research Soc. Jpn., Vol. 18A), 0, p.721 - 724, 1994/00
no abstracts in English
Yoshii, Fumio; S.Kulatunge*; Makuuchi, Keizo
Angewandte Makromolekulare Chemie, 205(3537), p.107 - 115, 1993/00
Times Cited Count:9 Percentile:43.85(Polymer Science)no abstracts in English